The sperm whale or cachalot (Physeter macrocephalus) is the largest of the toothed whales and the largest toothed predator. It is the only living member of the genus Physeter and one of three extant species in the sperm whale family, along with the pygmy sperm whale and dwarf sperm whale of the genus Kogia. … See more Etymology The name "sperm whale" is a clipping of "spermaceti whale". Spermaceti, originally mistakenly identified as the whales' semen, is the semi-liquid, waxy substance found within the whale's … See more After the discovery by Valentine Worthington and William Schevill confirmed the existence of whale vocalization further … See more Sperm whales can live 70 years or more. They are a prime example of a species that has been K-selected, meaning their reproductive strategy is associated with stable … See more Fossil record Although the fossil record is poor, several extinct genera have been assigned to the clade See more External appearance The sperm whale is the largest toothed whale and is among the most sexually dimorphic of all cetaceans. Both sexes are about the same size at birth, but mature males are typically 30% to 50% longer and three times as … See more Distribution Sperm whales are among the most cosmopolitan species. They prefer ice-free waters over 1,000 … See more Relations within the species Like elephants, females and their young live in matriarchal groups called pods, while bulls live apart. Bulls sometimes form loose bachelor … See more WebThere is only one living species in this genus: the sperm whale (Physeter macrocephalus). Some extremely poorly known fossil species have also been assigned to the same genus …
The Novel Evolution of the Sperm Whale Genome - PubMed
WebThe sperm whale (Physeter macrocephalus) or cachalot /ˈkæʃəˌlɒt, ˈkæʃəˌloʊ/ is the largest of the toothed whales and the largest toothed predator. It is the only living member of genus Physeter, and one of three extant species in the sperm whale family, along with the pygmy sperm whale and dwarf sperm whale of the genus Kogia. WebDeep-diving foraging behaviour of sperm whales (Physeter macrocephalus) 1. Digital tags were used to describe diving and vocal behaviour of sperm whales during 198 complete and partial foraging dives made by 37 individual sperm whales in the Atlantic Ocean, the Gulf of Mexico and the Ligurian Sea. 2. days since november 6 2022
Sometimes sperm whales (Physeter macrocephalus) cannot find …
WebBackground: Mass strandings of sperm whales (Physeter macrocephalus) remain peculiar and rather unexplained events, which rarely occur in the Mediterranean Sea. Solar cycles … WebFirst observed in the classical era, a population of sperm whales (Physeter macrocephalus) persists to this day in the deep waters of the Mediterranean Sea. Genetic and … WebSperm Whale (Physeter macrocephalus) A Sperm Whale is a predator and is the largest toothed whale in the oceans . Sperm whales can live up to 60 years and baby whales (calves) are raised with their mothers a quarter of their life. gcm repty